If you go to the programs tab, you cannot select any programs.
So, click all programs in the lower left hand corner, then from that screen, click back.
Now you can set the program button you want with your desired application..
Problem is, now you cannot get back to the home screen.
A soft reset is how i get everything back to normal.
Now I go to the programs tab again, and the programs I set are there, only they do not work. Like they are stuck
Hope this helps.